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DCS SC-443 THX Approved

SC-443 Cinema Loudspeaker System


Developed specifically for the unique requirements of professional motion picture playback, the SC-443 extends QSC's commitment to the cinema market. As a member of the DCS Digital Cinema Speaker Series, the SC-443 is a three-way, selectable bi or tri-amplified screen channel loudspeaker system comprised of three main units - the MH-1075 high-frequency system and dual LF-4215 low-frequency systems.

The MH-1075 Mid-High system features a high output, horn loaded 10" midrange cone driver and a 3" (75mm) titanium diaphragm compression driver mounted to an adjustable pan and tilt bracket. The MH-1075 includes a driver protection network and a passive crossover for bi-amp operation. Power limiter circuitry protects the high-frequency driver from overpowering. The MH-1075 provides extended frequency coverage for the critical midrange band. A high power 10" cone driver allows operation as low as 250 Hz and the advanced phase plug coupling permits a crossover point of up to 1800 Hz to the high-frequency horn. This ensures that most of the dialog range is reproduced by a single element, for unmatched intelligibility.

The LF-4215 dual 15" (381mm) low-frequency enclosures are designed specifically to address the extended low-frequency response required for cinema applications. The dual LF-4215s cover the frequency range from 35 Hz to 250 Hz. Close Coupled Woofers (CCW), with their tight spacing between woofers, improves coupling and keeps coverage angles wide over a greater frequency range than more widely spaced designs.

The SC-443 is designed for ease of installation. The MH-1075 components come pre-assembled to reduce field assembly time. Three bolts are all that are required to secure the MH-1075 to the top of the LF-4215 enclosure.

FEATURES

  • Three-way selectable, bi or tri- amplified screen channel system
  • MH-1075 provides 90° horizontal by +20° to -30° vertical coverage
  • LF-4215 is constructed of MDF and features single woofer chambers
  • Low-distortion waveguides provide highly articulate dialogue
  • Shallow depth (20") facilitates installation
  • THX Approved



DCS SERIES


DOCUMENTS

SC-443 Specifications (PDF 496K)
SC-443 User Manual (PDF 2.7MB)

HI-RES IMAGE

SC-443

CAD DRAWINGS

SC-443 (DXF, zipped 304K)
MH-1075 (DXF, zipped 271K)
LF-4215 (DXF, zipped 36K)

RELATED PRODUCTS

DCA Series 2-Channel Amplifiers
DCA Series 4-Channel Amplifiers
DCM Digital Cinema Monitor


RoHS Compliant
RoHS Compliant



SPECIFICATIONS SC-443
Nominal Coverage 90° horizontal by +20 to -30° vertical
Frequency Range (-6 dB) 32 Hz -16 kHz
Crossover Frequency
 250 & 1700 Hz, 24 dB per octave
(2)LF-4215 MH-1075
Impedance 4 ohms each 8 ohms
Sensitivity 1 watt/1 meter,
half space		 102.5 dB
Bi-amp
106 dB		 Tri-amp
MF 105 dB
HF 107.5 dB
Maximum Input Power 1 
(8 hours of 6 dB crest factor IEC 268 noise spectrum)

(2 hours of 6 dB crest factor pinknoise, 50 Hz 20 kHz, AES method)
Recommended Amplifier Power
800 watts RMS EA.


1000 watts RMS EA.

1600 watts RMS maximum EA.
250 W RMS
passive
mid-high2 		 275 W RMS 80 W RMS
350 watts RMS

800 watts RMS maximum
Recommended Processing Subsonic filter below 30 Hz, >18 dB per octave 4th order LR crossover at 250 & 1700 Hz via QSC DCM or QSControl.net
Connectors Barrier strip screw terminals accept up to #10 AWG stranded wire
 Barrier strip screw terminals accept up to #10 AWG stranded wire
Transducers Four 15" (381mm) high efficiency, extended bass woofers featuring 4" copper voice coils
 10" high efficiency mid range, 1.5" (38mm) exit, 3" titanium diaphragm compression driver,
Enclosure Quasi B4 alignment, ported enclosure with fully flared ports, symmetrical port design, tuned to 36 Hz, constructed of MDF and heavily braced. Features vandal resistant woofer mounting bolts
 Tilt/Pan Bracket
±10° vertical tilt
±10° horizontal pan
Dimensions 30" wide x 72" high x 20.3" deep
(762mm x 1820mm x 516mm)
 30" wide x 39" high x 20" deep
(762mm x 990mm x 508mm)
Net Weight 344 lbs (156 kg) 85 lbs (39 kg)
System Weight 429 lbs (195 kg)
Baffle Cut-Out 111.6" x 32"
1 Maximum input power tested in accordance with IEC 268-5 recommendations, 50 Hz - 20 kHz band limiting, 6 dB signal crest factor.
2 Maximum input power tested in accordance with IEC 268-5 recommendations, 200 Hz - 2 kHz band limiting, 6 dB signal crest factor.

Specifications subject to change without notice.


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